Alright I have a P28 to go along with the 95 D16Z6 in my 91 HF. I have a few questions. I got the car from a guy at work and he half *** did the swap. There is a VTEC switch controlling VTEC at the moment. I would like to get rid of that, hence the VTEC ecu.

Do I need two 4-wire O2 sensors or just one? Also what O2 sensors will work? Do I need a plug for the sensors or can I just wire straight to them from the ECU? Where do the other two wires go that aren't used by the ECU, my directions only say use the black and white wires.

I was looking at hooking the VTEC wires on my conversion harness and couldn't find the blue wire for the pressure sensor. I found the solenoid wire, but not the other one. Also on the green plug on the solenoid, is there supposed to be a connector? If not, which prong can I use to get the signal, if at all?

For the ECU power I use the O2 sensor black wire and the Green wire for the ground?

No need to worry about the IAB, knock sensors, right?

Thanks guys, I am just trying to get this straightened out and get the car running right.

 

you only need one 4 wire heated 02 sensor you dont need a plug you can wire them straight to if you can reach, but as far as i know you need to hook up all 4 wires

as far as the pressure switch and the solinoid the pressure switch is the green thing that only has one wire and the solinoid is the metal one on top of the pressure switch (one wire is a power and hte other goes straight to a ground)

and yea there is no need to wory about the IAB or knock sensor

 

Well there are no wires on the pressure switch and there is only one wire on the solenoid, so I may need a new one.

Also where do all the wires on the O2 sensor get wires to, I know where 2 of them go, where do the other's go.

Thanks.

 

Bump, anyone else?

I also had another question. If I got a 92-95 engine harness, complete with all the plugs, does it plug straight into the ECU from that harness? Also where does the interior harness plug into, like it goes from the cluster to the radio and a/c controls and where does it end up?

Thanks.